/*
 * Copyright (C) 2010 Graham Allan
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package edu.strath.cis.grallan.findbugs.adaptiveranking.population;

import static edu.strath.cis.grallan.findbugs.adaptiveranking.population.PopulationMapFactory.PopulationTypes.ALERT_TYPE;
import static edu.strath.cis.grallan.findbugs.adaptiveranking.population.PopulationMapFactory.PopulationTypes.CLASS;
import static edu.strath.cis.grallan.findbugs.adaptiveranking.population.PopulationMapFactory.PopulationTypes.METHOD;
import static edu.strath.cis.grallan.findbugs.adaptiveranking.population.PopulationMapFactory.PopulationTypes.PACKAGE;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

public class PopulationMapFactory {

	static enum PopulationTypes implements PopulationType {
		/* S. S. Heckman's values for coefficients */
		ALERT_TYPE(0.5), PACKAGE(0.0425d), CLASS(0.17d), METHOD(0.2875d);
		final double theWeight;

		PopulationTypes(double theWeight) {
			this.theWeight = theWeight;
		}

		@Override
		public String toString() {
			return "Population type=" + this.name() + ", weight=" + theWeight;
		}

		public double weight() {
			return theWeight;
		}

	}

	public Collection<AlertPopulationMap> createPopulationMaps() {
		List<AlertPopulationMap> types = new ArrayList<AlertPopulationMap>();
		types.add(new AlertTypePopulationMap(ALERT_TYPE));
		types.add(new PackagePopulationMap(PACKAGE));
		types.add(new ClassPopulationMap(CLASS));
		types.add(new MethodPopulationMap(METHOD));
		return Collections.unmodifiableCollection(types);
	}

}